초록 ▼

A masonry anchor is provided with a reaming portion which includes recessed portions for defining reservoir regions for accumulating debris generated by the reaming operation when the anchor is installed within a masonry structure. The accumulation of the debris within the reservoir regions reduces

A masonry anchor is provided with a reaming portion which includes recessed portions for defining reservoir regions for accumulating debris generated by the reaming operation when the anchor is installed within a masonry structure. The accumulation of the debris within the reservoir regions reduces torsional friction and installation torque characteristic of the anchor installation operation. Masonry anchors which are self-tapping or self-threading and which do not have reaming portions operatively associated therewith can also have such recessed reservoir structure defined thereon for such similar dust and debris accumulation and discharge purposes.

대표청구항 ▼

[ What is claimed as new and desired to be protected by Letters Patent of the United States of America, is:] [1.]1. A masonry anchor for insertion into a masonry structure, comprising:a shank portion having an outer peripheral surface portion;a head portion formed upon a first end of said shank port

[ What is claimed as new and desired to be protected by Letters Patent of the United States of America, is:] [1.]1. A masonry anchor for insertion into a masonry structure, comprising:a shank portion having an outer peripheral surface portion;a head portion formed upon a first end of said shank portion;a tip portion formed upon a second opposite end of said shank portion;a reaming portion disposed adjacent to said tip end portion of said shank portion and comprising a pair of diametrically opposite cutting edges;a threaded portion formed upon said outer peripheral surface portion of said shank portion intermediate said head and tip portions; andsurface portions, interconnecting said reaming portion and said threaded portion of said shank portion, and recessed radially inwardly from said outer peripheral surface portion of said shank portion, for defining recessed reservoir regions for accumulating dust and debris generated during an insertion operation of said masonry anchor into the masonry structure.